3.3

M3.3 Earthquake 85 km SE of Akutan, AlaskaApril 26, 2026

2026-04-26 20:55:28 UTC (2026-04-26) · approx. 9:55 AM UTC-11 local

MagnitudeM3.3(ml)
Time20:55 UTC9:55 AM UTC-11
Depth35.0 kmshallow crustal
Coordinates53.616°, -164.808°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 26, 2026 at 20:55 UTC, a magnitude 3.3 shallow crustal earthquake struck 85 km SE of Akutan, Alaska, at a depth of 35.0 km and coordinates 53.6156°, -164.8083°.

Physical scale: An earthquake of magnitude 3.3 releases seismic energy equivalent to roughly 1.3 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 114 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 53.62°, -164.81°

Earthquake Details

Magnitude
3.3 ml
Depth
35.0 km
shallow crustal
Location
53.6156°N
-164.8083°E

Technical Information

Event ID
us6000sxe0
Event Type
earthquake
Status
✓ Reviewed
Significance
168
Stations Used
24
Azimuthal Gap
213.0°
Min Station Distance
0.723°
RMS Residual
0.84 sec
Last Updated
2026-06-04 15:39:22 UTC

Common Questions

How strong was the magnitude 3.3 earthquake near Akutan, Alaska?

The magnitude 3.3 earthquake that struck 85 km SE of Akutan, Alaska on April 26, 2026 at 20:55 UTC had a depth of 35.0 km. For context, this was a minor earthquake typically detected only by instruments.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.3 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: us6000sxe0). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, April 26, 2026). M3.3 Earthquake 85 km SE of Akutan, AlaskaApril 26, 2026. Retrieved June 4, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000sxe0/